The Influence of Bulk and Sonic Placement Techniques on Microleakage of Class II Cavities Restored with Different Resin Composites

Document Type : Original Article

Authors

1 operative dentistry, faculty of dentistry, Mansoura university, Elmansoura city, Egypt

2 departement of oral biology, faculty of dentistry, Mansoura university

3 department of operative dentistry, faculty of dentistry, Mansoura university, Egypt

Abstract

Aim: To evaluate the microleakage of three different restorative composite resins through gingival margins of proximal boxes by dye and bacterial penetration techniques. Materials and Methods: Class II slot cavities were prepared for sixty sound human premolar teeth. The teeth were divided into 3 main equal groups of 20 teeth each. Group I cavities were restored with Filtek Z250XT and considered as control ones while those of group II and III were restored with Sonic-filled Filtek Z250XT and Tetric EvoCeram Bulk Fill, respectively. At first, all teeth were undergone thermal cycling and then each group was sub-divided into 2 subgroups of 10 teeth each; according to the microleakage technique used. Results: Monte-Carlo Statistical test showed that the three tested groups had no significant differences among them for the two techniques Conclusions: Sonic-fill technique had the least marginal leakage over the other techniques confirmed by both dye and bacterial leakage testing.

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